AU2015292265B2 - Method and device for chronologically synchronizing a kinematic location network - Google Patents
Method and device for chronologically synchronizing a kinematic location network Download PDFInfo
- Publication number
- AU2015292265B2 AU2015292265B2 AU2015292265A AU2015292265A AU2015292265B2 AU 2015292265 B2 AU2015292265 B2 AU 2015292265B2 AU 2015292265 A AU2015292265 A AU 2015292265A AU 2015292265 A AU2015292265 A AU 2015292265A AU 2015292265 B2 AU2015292265 B2 AU 2015292265B2
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- AU
- Australia
- Prior art keywords
- positioning
- signal
- transmitter
- unit device
- positioning signal
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
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Classifications
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- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/03—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers
- G01S19/10—Cooperating elements; Interaction or communication between different cooperating elements or between cooperating elements and receivers providing dedicated supplementary positioning signals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/022—Means for monitoring or calibrating
- G01S1/024—Means for monitoring or calibrating of beacon transmitters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/04—Details
- G01S1/042—Transmitters
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S1/00—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith
- G01S1/02—Beacons or beacon systems transmitting signals having a characteristic or characteristics capable of being detected by non-directional receivers and defining directions, positions, or position lines fixed relatively to the beacon transmitters; Receivers co-operating therewith using radio waves
- G01S1/08—Systems for determining direction or position line
- G01S1/20—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems
- G01S1/24—Systems for determining direction or position line using a comparison of transit time of synchronised signals transmitted from non-directional antennas or antenna systems spaced apart, i.e. path-difference systems the synchronised signals being pulses or equivalent modulations on carrier waves and the transit times being compared by measuring the difference in arrival time of a significant part of the modulations, e.g. LORAN systems
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/14—Receivers specially adapted for specific applications
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/25—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS
- G01S19/254—Acquisition or tracking or demodulation of signals transmitted by the system involving aiding data received from a cooperating element, e.g. assisted GPS relating to Doppler shift of satellite signals
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/01—Satellite radio beacon positioning systems transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/13—Receivers
- G01S19/24—Acquisition or tracking or demodulation of signals transmitted by the system
- G01S19/29—Acquisition or tracking or demodulation of signals transmitted by the system carrier including Doppler, related
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
- G01S19/48—Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system
- G01S19/49—Determining position by combining or switching between position solutions derived from the satellite radio beacon positioning system and position solutions derived from a further system whereby the further system is an inertial position system, e.g. loosely-coupled
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0205—Details
- G01S5/021—Calibration, monitoring or correction
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S5/00—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations
- G01S5/02—Position-fixing by co-ordinating two or more direction or position line determinations; Position-fixing by co-ordinating two or more distance determinations using radio waves
- G01S5/0284—Relative positioning
- G01S5/0289—Relative positioning of multiple transceivers, e.g. in ad hoc networks
-
- G—PHYSICS
- G01—MEASURING; TESTING
- G01S—RADIO DIRECTION-FINDING; RADIO NAVIGATION; DETERMINING DISTANCE OR VELOCITY BY USE OF RADIO WAVES; LOCATING OR PRESENCE-DETECTING BY USE OF THE REFLECTION OR RERADIATION OF RADIO WAVES; ANALOGOUS ARRANGEMENTS USING OTHER WAVES
- G01S19/00—Satellite radio beacon positioning systems; Determining position, velocity or attitude using signals transmitted by such systems
- G01S19/38—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system
- G01S19/39—Determining a navigation solution using signals transmitted by a satellite radio beacon positioning system the satellite radio beacon positioning system transmitting time-stamped messages, e.g. GPS [Global Positioning System], GLONASS [Global Orbiting Navigation Satellite System] or GALILEO
- G01S19/42—Determining position
Landscapes
- Engineering & Computer Science (AREA)
- Radar, Positioning & Navigation (AREA)
- Remote Sensing (AREA)
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Computer Networks & Wireless Communication (AREA)
- Position Fixing By Use Of Radio Waves (AREA)
Applications Claiming Priority (3)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| AU2014902899A AU2014902899A0 (en) | 2014-07-25 | Method and Device for Synchronizing a Positioning System on Moving Platforms | |
| AU2014902899 | 2014-07-25 | ||
| PCT/AU2015/050412 WO2016011505A1 (en) | 2014-07-25 | 2015-07-22 | Method and device for chronologically synchronizing a kinematic location network |
Publications (2)
| Publication Number | Publication Date |
|---|---|
| AU2015292265A1 AU2015292265A1 (en) | 2017-03-09 |
| AU2015292265B2 true AU2015292265B2 (en) | 2018-04-19 |
Family
ID=55162327
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| AU2015292265A Active AU2015292265B2 (en) | 2014-07-25 | 2015-07-22 | Method and device for chronologically synchronizing a kinematic location network |
Country Status (10)
| Country | Link |
|---|---|
| US (2) | US10324191B2 (enExample) |
| EP (1) | EP3195013B1 (enExample) |
| JP (1) | JP6712590B2 (enExample) |
| KR (1) | KR102407307B1 (enExample) |
| CN (1) | CN106662654B (enExample) |
| AU (1) | AU2015292265B2 (enExample) |
| ES (1) | ES2842282T3 (enExample) |
| IL (1) | IL249247B (enExample) |
| SG (1) | SG11201700548YA (enExample) |
| WO (1) | WO2016011505A1 (enExample) |
Families Citing this family (21)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| PT3357285T (pt) * | 2015-10-02 | 2021-09-24 | Ericsson Telefon Ab L M | Sincronização de relógios numa rede de comunicações |
| CN109792417B (zh) * | 2016-09-26 | 2022-07-05 | 瑞典爱立信有限公司 | 高速lte部署的频率调整 |
| CN107422301A (zh) * | 2017-06-27 | 2017-12-01 | 北京航空航天大学 | 一种可替代传统无线电导航系统的大区域高精度定位方法 |
| GB2564406B (en) * | 2017-07-06 | 2022-09-07 | Focal Point Positioning Ltd | Method and system for correcting the frequency or phase of a local signal generated using a local oscillator |
| EP3766192A4 (en) * | 2018-03-14 | 2021-12-29 | Locata Corporation Pty Ltd | Method and apparatus for synchronising a location network |
| CN109257085B (zh) * | 2018-03-30 | 2020-11-03 | 北京润科通用技术有限公司 | 人造卫星与飞行设备间多普勒频移的获得方法及装置 |
| WO2020074747A1 (en) | 2018-10-12 | 2020-04-16 | Oq Technology S.À R.L. | Method and system for non-terrestrial cellular wireless communication networks |
| US11240773B2 (en) | 2018-12-07 | 2022-02-01 | Google Llc | Managing doppler and framing impacts in networks |
| US12477583B2 (en) | 2022-06-22 | 2025-11-18 | Rockwell Collins, Inc. | Aliasing for cell-based manet |
| US12316403B2 (en) | 2022-05-20 | 2025-05-27 | Rockwell Collins, Inc. | Situational awareness (SA) in radio silence (spatial awareness) |
| US11665658B1 (en) | 2021-04-16 | 2023-05-30 | Rockwell Collins, Inc. | System and method for application of doppler corrections for time synchronized transmitter and receiver |
| US12137048B2 (en) * | 2019-11-27 | 2024-11-05 | Rockwell Collins, Inc. | System and method for spatial awareness network routing |
| US12474431B2 (en) | 2019-11-27 | 2025-11-18 | Rockwell Collins, Inc. | Doppler-nulling and two-way timing and ranging (spatial awareness) |
| US12366625B2 (en) | 2019-11-27 | 2025-07-22 | Rockwell Collins, Inc. | System and method using passive spatial awareness for GEO network routing |
| US12326506B2 (en) | 2019-11-27 | 2025-06-10 | Rockwell Collins, Inc. | DNS spatial discoveries with on-going traffic |
| US12335138B2 (en) | 2019-11-27 | 2025-06-17 | Rockwell Collins, Inc. | Spatial awareness navigation techniques on unmanned aerial vehicles (spatial awareness) |
| US12407393B2 (en) | 2019-11-27 | 2025-09-02 | Rockwell Collins, Inc. | System and method for spatial awareness overlay onto mobile ad hoc network (MANET) frequent message preambles |
| EP4070120A4 (en) * | 2019-12-03 | 2024-01-03 | Locata Corporation Pty Ltd | METHODS AND APPARATUS FOR IMPROVING THE STRENGTH OF A POSITIONING NETWORK |
| DE102019135493A1 (de) * | 2019-12-20 | 2021-06-24 | Trumpf Werkzeugmaschinen Gmbh + Co. Kg | Verfahren und System zur Synchronisation von Signalen |
| US12363664B2 (en) * | 2021-12-17 | 2025-07-15 | Lenovo (Singapore) Pte. Ltd. | Positioning in a non-terrestrial network |
| US12276743B2 (en) | 2021-12-17 | 2025-04-15 | Lenovo (United States) Inc. | Configuration and reporting in a non-terrestrial network |
Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5886665A (en) * | 1997-08-07 | 1999-03-23 | Rockwell International | GNSS local constellation/acquisition aiding system |
| WO1999050985A1 (en) * | 1998-03-30 | 1999-10-07 | Telia Ab (Publ) | Method and arrangement for synchronisation at a mobile radio communications system |
| US20020167934A1 (en) * | 2001-03-09 | 2002-11-14 | Carter Stephen S. | Method and system for timebase synchronization |
| WO2003038469A1 (en) * | 2001-11-02 | 2003-05-08 | Qx Corporation Pty Ltd | A method and device for chronologically synchronizing a location network |
| WO2005012935A1 (en) * | 2003-08-05 | 2005-02-10 | Locata Corporation | A system and method for provinding assistance data within a location network |
Family Cites Families (16)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| JP3405624B2 (ja) | 1995-09-29 | 2003-05-12 | 株式会社東芝 | 静止衛星のgpsオーバーレイシステム |
| AUPP375498A0 (en) | 1998-05-29 | 1998-06-18 | Small, David | A method for creating a network positioning system (NPS) |
| US6121928A (en) * | 1998-08-18 | 2000-09-19 | Trimble Navigation Limited | Network of ground transceivers |
| US6538600B1 (en) * | 1998-10-16 | 2003-03-25 | Lucent Technologies Inc. | Wireless assisted GPS using a reference location |
| JP2002228737A (ja) * | 2001-02-01 | 2002-08-14 | Mitsubishi Electric Corp | 測位情報受信装置および測位情報受信方法 |
| US20040010368A1 (en) * | 2002-07-10 | 2004-01-15 | Logan Scott | Assisted GPS signal detection and processing system for indoor location determination |
| JP2005201737A (ja) | 2004-01-14 | 2005-07-28 | Sony Corp | 通信装置 |
| US8254512B2 (en) * | 2004-11-17 | 2012-08-28 | Qualcomm Incorporated | Method and apparatus for increasing coherent integration length while receiving a positioning signal |
| JP5077054B2 (ja) | 2008-05-07 | 2012-11-21 | トヨタ自動車株式会社 | 移動体用測位システム |
| ATE482408T1 (de) * | 2008-05-26 | 2010-10-15 | Ublox Ag | Verfahren zur bearbeitung eines von einem analogen eingangssignal eines gnss-empfängers abgeleiteten digitalen signals, basisbandschaltung eines gnss-empfängers zur durchführung des verfahrens und gnss-empfänger |
| US20100066603A1 (en) * | 2008-09-15 | 2010-03-18 | O'keefe Kyle | System and Methods for Real Time Kinematic Surveying Using GNSS and Ultra Wideband Ranging |
| US7928811B2 (en) | 2008-12-22 | 2011-04-19 | Sirf Technologies, Inc. | System and method for use of a switched mode TCXO for receiver applications |
| CN101487885B (zh) | 2009-02-17 | 2011-06-08 | 李再强 | 一种追踪、训练用gps定位器 |
| US9176217B2 (en) * | 2011-08-02 | 2015-11-03 | Nextnav, Llc | Cell organization and transmission schemes in a wide area positioning system (WAPS) |
| US20140004887A1 (en) | 2012-06-29 | 2014-01-02 | Qualcomm Incorporated | Crystal oscillator calibration |
| FR3018941B1 (fr) * | 2014-03-21 | 2017-07-07 | Thales Sa | Pilotage de vehicules en convoi |
-
2015
- 2015-07-22 SG SG11201700548YA patent/SG11201700548YA/en unknown
- 2015-07-22 WO PCT/AU2015/050412 patent/WO2016011505A1/en not_active Ceased
- 2015-07-22 JP JP2017524067A patent/JP6712590B2/ja active Active
- 2015-07-22 AU AU2015292265A patent/AU2015292265B2/en active Active
- 2015-07-22 US US15/327,333 patent/US10324191B2/en active Active
- 2015-07-22 CN CN201580036895.7A patent/CN106662654B/zh active Active
- 2015-07-22 ES ES15825228T patent/ES2842282T3/es active Active
- 2015-07-22 EP EP15825228.8A patent/EP3195013B1/en active Active
- 2015-07-22 KR KR1020167035669A patent/KR102407307B1/ko active Active
-
2016
- 2016-11-28 IL IL249247A patent/IL249247B/en active IP Right Grant
-
2019
- 2019-05-08 US US16/406,101 patent/US10754039B2/en active Active
Patent Citations (5)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5886665A (en) * | 1997-08-07 | 1999-03-23 | Rockwell International | GNSS local constellation/acquisition aiding system |
| WO1999050985A1 (en) * | 1998-03-30 | 1999-10-07 | Telia Ab (Publ) | Method and arrangement for synchronisation at a mobile radio communications system |
| US20020167934A1 (en) * | 2001-03-09 | 2002-11-14 | Carter Stephen S. | Method and system for timebase synchronization |
| WO2003038469A1 (en) * | 2001-11-02 | 2003-05-08 | Qx Corporation Pty Ltd | A method and device for chronologically synchronizing a location network |
| WO2005012935A1 (en) * | 2003-08-05 | 2005-02-10 | Locata Corporation | A system and method for provinding assistance data within a location network |
Also Published As
| Publication number | Publication date |
|---|---|
| IL249247A0 (en) | 2017-02-28 |
| CN106662654A (zh) | 2017-05-10 |
| US20170168163A1 (en) | 2017-06-15 |
| EP3195013A1 (en) | 2017-07-26 |
| WO2016011505A1 (en) | 2016-01-28 |
| EP3195013B1 (en) | 2020-11-04 |
| JP2017524957A (ja) | 2017-08-31 |
| IL249247B (en) | 2019-03-31 |
| KR20170035841A (ko) | 2017-03-31 |
| JP6712590B2 (ja) | 2020-06-24 |
| AU2015292265A1 (en) | 2017-03-09 |
| CN106662654B (zh) | 2020-02-28 |
| KR102407307B1 (ko) | 2022-06-10 |
| US10324191B2 (en) | 2019-06-18 |
| ES2842282T3 (es) | 2021-07-13 |
| US20190265363A1 (en) | 2019-08-29 |
| EP3195013A4 (en) | 2018-04-04 |
| SG11201700548YA (en) | 2017-02-27 |
| US10754039B2 (en) | 2020-08-25 |
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Legal Events
| Date | Code | Title | Description |
|---|---|---|---|
| FGA | Letters patent sealed or granted (standard patent) |